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filterType = 0, Simple pass through with unity gain.

filterType = 1, Linear gain Gain in dB [.gain].

filterType = 2, 1st order Butterworth low pass filter [.freq]

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Code Block
typedef struct _ModuleSofV2HpFract32
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    INT32 filterType;                             // Selects the type of filter that is implemented by the module: Bypass=0 Gain=1 Butter1stLPF=2 Butter2ndLPF=3 Butter1stHPF=4 Butter2ndHPF=5 Allpass1st=6 Allpass2nd=7 Shelf2ndLow=8 Shelf2ndLowQ=9 Shelf2ndHigh=10 Shelf2ndHighQ=11 PeakEQ=12 Notch=13 Bandpass=14 Bessel1stLPF=15 Bessel1stHPF=16 AsymShelf1stLow=17 AsymShelf1stHigh=18 SymShelf1stLow=19 SymShelf1stHigh=20
    FLOAT32 freq;                                 // Cutoff frequency of the filter
    FLOAT32 gain;                                 // Amount of boost or cut to apply, in decibels (if applicable)
    FLOAT32 Q;                                    // Specifies the Q of the filter, if applicable
    FLOAT32 smoothingTime;                        // Time constant of the smoothing process
    INT32 updateActive;                           // Specifies whether the filter coefficients are updating (=1) or fixed (=0)
    fract32 smoothingCoeff;                       // Smoothing coefficient. This is computed based on the smoothingTime, sample rate, and block size of the module
    INT32 bShift;                                 // Number of bits to shift of Numerator coefficients
    INT32 aShift;                                 // Number of bits to shift of Denominator coefficients
    fract32* targetCoeffs;                        // Target coefficients in Fract32
    fract32* currentCoeffs;                       // Instantaneous coefficients in Fract32
    fract32* state;                               // State variables. 6 per channel.
} ModuleSofV2HpFract32Class;

Variables

Properties

Name

Type

Usage

isHidden

Default value

Range

Units

filterType

int

parameter

0

0

0:20

freq

float

parameter

0

250

10:0.1:20000

Hz

gain

float

parameter

0

0

-24:0.1:24

dB

Q

float

parameter

0

1

0:0.1:20

smoothingTime

float

parameter

0

10

0:1:1000

msec

updateActive

int

parameter

1

1

0:1

smoothingCoeff

fract32

derived

1

0.06449

Unrestricted

bShift

int

derived

1

1

Unrestricted

aShift

int

derived

1

0

Unrestricted

targetCoeffs

fract32*

derived

0

[5 x 1]

Unrestricted

currentCoeffs

fract32*

state

0

[5 x 1]

Unrestricted

state

fract32*

state

1

[6 x 1]

Unrestricted

Pins

Input Pins

Name: in

Description: audio input

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